Laps prediction

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Laps prediction

In QForm UK laps prediction algorithms were completely redeveloped, which made it possible to significantly increase the reliability of the application. The appearance of a lap during the simulation process is identified by red dots on the workpiece , which show the contact of the workpieces surface itself. Below is the process of hot forging a flange from a steel cylinder workpieces.

1_lap

2_lap

3_lap

 

 

Initial data

Operation 1

Operation

Operation type

General forming

Problem type

2D axisymmetric

Additional parameters

With thermal process

Geometry

Load from file

lap.dxf

Workpiece parameters

Material

Steels\Carbon steels\C10 (1-0301)

Temperature

1200˚С

Tool parameters

Drive

Tool 1 - Mechanical press 10 MN

Tool 2 - Fixed drive +OZ

Lubricant

Tool 1, 2 - Graphite and water (Hot forging/Steels/Graphite + Water)

Material

Tool 1, 2 - H13 HRC50

Temperature

Tool 1, 2 - 200˚С

Coupled tools simulation

Not

Heat transfer to workpiece

Simple

Stop conditions

Distance

1 mm between Tool 1 And Tool 2

Boundary conditions

Environment

Air 20˚C

Blows

Number of blows

1

Cooling in air

4 s

Cooling on tool

2 s

Simulation parameters

 

Default

 

 

1.Click Create new process

2.In the tab Operation select Operation type - General forming, Problem type - 2D axisymmetric. Click Forward

3.In the tab Geometry click Load from file and specify the path to the geometry file C:\QForm UK\12.0.1\geometry\laps_prediction\lap.dxf. The uploaded geometry will appear on screen. ClickForward
Click to zoom
 

4.In the tab Workpiece parameters you need to set the material and temperature of workpiece. Click opposite Material[Select...]
In the database window that opens, select the material Steels\Carbon steels\C10 (1-0301) and double click on it, after that the material will appear in the tab Workpiece parameters
Set workpiece temperature 1200˚С. Click Forward

5.In the tab Tool parameters drive type, temperature and lubricant should be select for each tool. Opposite Drive-Tool 1 click [Select...] the database window will open. Choose equipment Standard\Mechanical press\10MN and double click on it, after that the selected drive will appear opposite Drive-Tool 1. Tool 2 - fixed, and it acts in the direction of the OZ axes. Opposite Drive-Tool 2 click [Select...], in the equipment database window, select Fixed drives\+OZ and double click on it,the selected drive will appear opposite Drive-Tool 2.
Further opposite Lubricant click [Select...] and double click to set the lubricant Hot forging/Steels/Graphite + water. Lubricant will appear at point Lubricant right opposite to all the tools.
Opposite Material click [Select...] and double click to set the material H13 HRC50. It is also necessary to assign the temperature Tools 1, 2 - 200 degrees. Click Forward
Click to zoom

6.In the Stop conditions tab you should set final distance between the tools. Click Distance. After this, specify the value of the final distance 1 mm. Click Forward

7.In the Boundary conditions tab all remains unchanged. Click Forward.

8.In the tab Blows you need to set cooling time in air (4 s) and in the tool (2 s). Click Forward

9.In the Simulation parameters tab all remains unchanged. Click OK

10.Click on the button Simulation17_disk_2D, and the program will ask to save the project. Set the project name and click Save. The simulation will start after that.

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